Turn negatives into digital pictures. Great way to get rid of all of those piles of film negatives from 20 years ago that we all have had stashed away somewhere. Wow I have so many negatives! This is so awesome!
Don't have a paper? Use the pen and sprayer. Spray on hand, write note, peal off. Don't have paper- put it in your phone or try to remember it. if you are not carrying anything to write on, I guarantee you are not carrying spray on paper.